PT-2025-53205 · Linux · Linux Kernel

Published 2023-03-31 · Updated 2026-01-28 · CVE-2023-54128

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel related to the handling of peer group IDs within the filesystem namespace lock. Specifically, during cleanup of peer group IDs in failure scenarios, the namespace lock is not consistently held. This can lead to a race condition where another thread might concurrently change a mount from shared to non-shared.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BDU:2026-01211

CVE-2023-54128

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

Affected Products

Linux Kernel

References · 856

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54128.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-54128 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54128 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54128 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54128 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-54128 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54128 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54128 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54128 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01211 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://bugzilla.suse.com/1255996 · Note
• https://suse.com/security/cve/CVE-2023-54118 · Note
• https://bugzilla.suse.com/1255007 · Note